// ============================================================================
//
// Copyright (C) 2006-2007 Dengues
//
// Google Group: http://groups.google.com/group/dengues
// QQ Group: 24885404
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
//
// ============================================================================
package org.dengues.designer.ui.database.commands;

import org.dengues.designer.ui.editors.AbstractGEFCommand;
import org.dengues.model.database.DBNote;
import org.dengues.model.database.DiagramChild;

/**
 * Qiang.Zhang.Adolf@gmail.com class global comment. Detailled comment <br/>
 * 
 * @since 2007-9-23 下午01:45:10
 */
public class DiagramChildNameChangeCommand extends AbstractGEFCommand {

    private final DiagramChild model;

    private final String string;

    private String oldText;

    /**
     * Qiang.Zhang.Adolf@gmail.com DBColumnNameChangeCommand constructor comment.
     * 
     * @param model
     * @param value
     */
    public DiagramChildNameChangeCommand(DiagramChild model, String value) {
        setLabel("change foreign key name");
        this.model = model;
        this.string = value;
    }

    @Override
    public void execute() {
        if (model instanceof DBNote) {
            oldText = ((DBNote) model).getText();
            ((DBNote) model).setText(string);
        } else {
            oldText = model.getName();
            model.setName(string);
        }
    }

    /*
     * (non-Javadoc)
     * 
     * @see org.eclipse.gef.commands.Command#undo()
     */
    @Override
    public void undo() {
        if (model instanceof DBNote) {
            ((DBNote) model).setText(oldText);
        } else {
            model.setName(oldText);
        }
    }
}
